A donkey, putting a small pile of rubber out for wartime recycling, is dismayed by the much larger piles his neighbors have put out. He goes into the back yard and finds a huge buried inner tube, but that inner tube has a mind of its own.
A suburban homeowner, embarrassed by his small rubber contribution to the war drive in comparison to his neighbors, goes searching the yard for more. He finds an inner tube half-buried in his backyard. His efforts to dig it up become a major excavation, as the inner tube proves to be bigger than first thought.